PPM is failing because it does not know the NTLM protocol. How can I get around this problem?

I have set the following ENV vars: 

HTTP_proxy
HTTP_proxy_user
HTTP_proxy_pass

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I called our network infrastructure engineer he sent me back the error the proxy server is logging. 
Client-Warning: Unsupported authentication scheme 'ntlm'"

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ppm> install XML-SAX-Simple
Error: Failed to download URL http://crazyinsomniac.perlmonk.org/perl/
+ppm/5.8/XML-SAX-Simple.ppd: 407 Proxy Authentication Required
ppm>

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Is my only recourse to download all the modules manually?

thank you

In reply to PPM Fails to Connect by vegasjoe

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